sylvine

from WordNet (r) 3.0 (2006)

sylvine
    n 1: a mineral consisting of native potassium chloride; an
         important ore of potassium that is found in sedimentary
         beds [syn: {sylvite}, {sylvine}]

from The Collaborative International Dictionary of English v.0.48

Sylvine \Syl"vine\, Sylvite \Syl"vite\, n. [So called from NL.
   sal digestivus sylvii potassium chloride.] (Min.)
   Native potassium chloride.
   [1913 Webster]

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